High-pulse energy and average-power ultrashort laser pulses via nonlinear compression of coherently combined fiber CPA system

Steffen Hädrich; Arno Klenke; Armin Hoffmann; Tino Eidam; Thomas Gottschall; Jan Rothhardt; Jens Limpert; Andreas Tünnermann

doi:10.1117/12.2039603

7 March 2014 High-pulse energy and average-power ultrashort laser pulses via nonlinear compression of coherently combined fiber CPA system

Steffen Hädrich, Arno Klenke, Armin Hoffmann, Tino Eidam, Thomas Gottschall, Jan Rothhardt, Jens Limpert, Andreas Tünnermann

Author Affiliations +

Proceedings Volume 8961, Fiber Lasers XI: Technology, Systems, and Applications; 89611E (2014) https://doi.org/10.1117/12.2039603
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

Coherent combination applied to state-of-the-art femtosecond fiber CPA systems has recently opened the route towards high energy and average power laser systems. The ~2 mJ, 340 fs, 196 W (100 kHz) pulses of such a system are coupled to an argon-filled hollow-core fiber for spectral broadening via self-phase modulation. Subsequent compression in a chirped mirror compressor leads to ~1 mJ, 45 fs, 96 W pulses. Under different conditions 580 μJ, 26 fs, 11.6 GW, 135 W (250 kHz) pulses are achieved. This is an unprecedented combination of average power and pulse energy.

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Steffen Hädrich, Arno Klenke, Armin Hoffmann, Tino Eidam, Thomas Gottschall, Jan Rothhardt, Jens Limpert, and Andreas Tünnermann "High-pulse energy and average-power ultrashort laser pulses via nonlinear compression of coherently combined fiber CPA system", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89611E (7 March 2014); https://doi.org/10.1117/12.2039603

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